AI Glossary
Speculative decoding
What does “Speculative decoding” mean?
Speculative decoding: A generation method that proposes several candidate tokens and lets the target model verify them together. Accepted tokens can advance generation in fewer target-model steps.

What is an example of “Speculative decoding”?
A small draft model suggests a phrase, and the larger target model accepts its first few tokens before correcting the next one.